Cooling firearms



P. C. HEWITT.

COOLING FIREARMS.

APPLICATION FILED JUNE 21. I917- 1,'329,903, Patented Feb. 3, i920.

1 Y W @QQ @Q2Q$@ QQQ WITNESS. c0 7 VENT-0H UNITED STATES. PATENT OFFICE.

PETER COOPER HEWITT, OF RINGWOOD MANOR, NEW JERSEY.

COOLING FIREARMS.

To all whom it may concern:

Be it known that I, PETER Coornn HEWITT, a citizen of the United States,and resident of Ringwood Manor, county of Passaic, State of New Jersey,have invented certain new and useful Improvements in Cooling Firearms,of which the following is a speci fication,

My invention relates to means for cooling firearms of differentcharacters, especially rapid automatic guns employing explosives as thebullet propelling means at such rates that the barrel is apt to becomeoverheated by the heating effect of the powder, and recognizes asofequal importance cooling means to dissipate the heat so generated atsuch a rate as to prevent undue overheating, and the necessityof theassociation of the two so as to insure the delivery of the one with theother.

My invention consists .in providing means for automatically anddefinitely associating cooling means with the feed of the explosives andthe relation of the cooling means to the explosive cartridges or shellsbeing such as to bear the proper relation of cooling to heating. TheCOOling means are so associated with the explosives that the coolingmeans must be supplied to the gun when the explosive or heating meansare supplied.

A convenient means for carrying out my invention is to mount upon a beltor tape or in some suitable carrier, cartridges and a container for heatabsorbent substances, such as water, or equivalent material, so arrangedthat the heat absorbent will be fed to the gun in regular relation, withreference to the explosives. In the case of the use of water, forinstance, the carriers of water will be so located that the watertherein will be fed to the gun so as to cool the barrel from the outsideat the required rate with reference to the cartridge feed. The gun has aheat storage capacity which may be utilized for permitting a definiteintermittence between the successive explosive supply and coolingsupply. Various difierent methods may be adopted for securing thisresult, the broad feature of the invention being the inseparable anddefinite association for delivery for assuring the feeding of thecooling and explosive materials in proper relation and with reference tothe permissible heating of the gun.

In the accompanying drawings, I have shown one method of applying theinvention Specification of Letters Patent.

- said firearms.

Figure 1 showing an alternate arrangement of explosive cartridges andcooling carriers;

2 showing an arrangement of a plurality of cartridges and a coolingcarrier; and F ig. 3 showing a modified arrangement of the elements ofFigs. 1 and 2. Referring to the drawing, 1, represents a belt or carrierupon which are arranged explosive cartridges, 2, and at intervals thereare placed cooling cartridges, 3; for instance, shells similar to theshells of the explosive cartridges, but containing water or other heatabsorbent.

In the drawing the cooling cartridges are shown as being arranged to befed in equal numbers coincident with the explosive cartridges, but thecooling cartridges may be arranged to feed in any other ratio to theexplosive cartridges, such for instance as one cooling cartridge toevery three explosive cartridges as shown in Fig. 2, or at any otherpredetermined ratio. The cooling cartridges may be fed to a chamberother than the gun bore arranged so as to abstract the heat from thebarrel.

I have not here shown any particular gun, as the invention may bevariously modified to suit the requirements in different cases.Mechanism for producing the simultaneous delivery of the explosivecartridge and the cooling cartridge to their respective chambers in theratio required for cooling is readily obtainable and the cooling actionis insured on account of the inseparable association of the heating andcooling means, in proper proportion and in time of delivery.

I claim as my invention:

1. The method of cooling firearms which consists in associating aseparate individually mounted cooling medium with the cartridge supply,and passing the cooling medium and the cartridge supply to the firearmsin definite relation to the heating of 2. In a cartridge feed belt, thecombina- Patented Feb. 3, 1920.-

Application filed June 21, 1917. Serial No. 176,014.

tion with a series of explosive cartridges or shells, of interspersedcooling carriers definitely arranged with reference to the explosivecartridges.

8. As an article of manufacture, a unitary carriercontaining explosivecartridges and cooling cartridges, said cooling cartridges being mountedin said carrier independently of the explosive cartridges.

4. In a cartridge feeding device, the combination with a series ofexplosive cartridges or shells, of cooling carriers definitely arrangedwith reference to the explosives and separately mounted in said device.

5. The combination in a unitary package, of a plurality of explosivecartridges or shells, and a cooling medium in a separate containermounted independently of the explosive shell.

6. In a cartridge supply device, the combination with a series ofexplosive cartridges or shells, of separate cooling means definitelyarranged with reference to the explosives andmounted in said deviceindependently of the explosive cartridges.

7. cartridge supply device comprising a plurality of exploslvecartridges or she ls,

and separate cooling means associated therewith mounted in said deviceindependently of said explosive cartridges. 8. In a cartridge supplydevice, the combination with a plurality of explosive cartridges orshells, of separate cooling means spaced apart in said device andmounted independently of said explosive cartridges.

Signed at New York in the county of New York and State of New York this19th day of June, A. D. 1917. Y

PETER COOPER HEWITT.

